zoukankan      html  css  js  c++  java
  • Unable to connect to ps7_cortexa9的参考解决方案Zedboard,zynq

    Unable to connect to ps7_cortexa9

    JTAG: cannot shift DR

    This problem appears when the connection between arm cortex a9 and computer is broken. We have no effective solution to solve the problem. You can refer the following several operations to get the trouble away.

    1. Select Xilinx Tools>XMD Console, type the command: connect arm hw in the XMD console View, some status message will transformed from the cortex core. The message is shown as follows:

      XMD% connect arm hw

       

      --------------------------------------------------

      Enabling extended memory access checks for Zynq.

      Writes to reserved memory are not permitted and reads return 0.

      To disable this feature, run "debugconfig -memory_access_check disable".

       

      --------------------------------------------------

       

      CortexA9 Processor Configuration

      -------------------------------------

      Version.............................0x00000003

      User ID.............................0x00000000

      No of PC Breakpoints................6

      No of Addr/Data Watchpoints.........1

       

      Connected to "arm" target. id = 64

      Starting GDB server for "arm" target (id = 64) at TCP port no 1234

        But once the zedboard is not connected normally with the pc, the message appears different from above.

    1. Exit Xilinx SDK->Switch off zedboard->Switch On Zedboard->Start Xilinx SDK, try it!
    2. Restart Windows.
    3. Power off the Computer and switch off zedboard, pull out the use cable and have a rest. God Help! Then go on trying it!
  • 相关阅读:
    主成分分析(PCA)原理详解
    局部敏感哈希(Locality-Sensitive Hashing, LSH)方法介绍
    RSA算法原理(二)
    RSA算法原理(一)
    对倾斜的图像进行修正——基于opencv 透视变换
    GeoHash核心原理解析
    303. Range Sum Query
    325. Maximum Size Subarray Sum Equals k
    30. Substring with Concatenation of All Words
    76. Minimum Window Substring
  • 原文地址:https://www.cnblogs.com/dragen/p/3124014.html
Copyright © 2011-2022 走看看